¹Hefei Normal University, Hefei, China
²School of Management, University of Science and Technology of China, Hefei, China

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Abstract—For the issue of the lack in plotting analysis method in the research of DEA, this paper introduces a new graphic method—Co-Plot. It can demonstrate DMUs and variables visually in two-dimensional space, and enable the analysis of them at the same time. By applying the ratio relationship among variables, Co-Plot can be combined with DEA in a way to display the results of DEA easily and intuitively. Specific steps for graphing by Co-Plot are given, and the effectiveness of the method is proved through an illustration of commercial banks.

Index Terms—data envelopment analysis; efficiency measurement; Co-Plot.

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Cite: Hong Huang and Wenqiu Liao, "A Co-Plot- based Efficiency Measurement to Commercial Banks," Journal of Software vol. 7, no. 10, pp. 2247-2251, 2012.